Javascript Math atanh()

Introduction

The Math.atanh() function returns the hyperbolic arctangent of a number.

For values greater than 1 or less than -1, NaN is returned. 

Math.atanh(x)  // x is a number.

let a = Math.atanh(-2);  // NaN
console.log(a);//from   ww  w .j  a  v a  2s.com
a = Math.atanh(-1);  // -Infinity
console.log(a);
a = Math.atanh(0);   // 0
console.log(a);
a = Math.atanh(0.5) // 0.5493061443340548
console.log(a);
a = Math.atanh(1);   // Infinity
console.log(a);
a = Math.atanh(2);   // NaN
console.log(a);



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